phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('997e299514d9a2f926fd9f916a52f1cd', -1, 1711710772, 1711710772, '54ccfc03', -9, 0, 0)

Line : 187
File : sessions.php